Sliding-top desk



L. S. CRONE.

SLIDING TOP DESK.

APPLICATION FILED NOV.6, 1920.

1,395,558. Patented Nov. 1, 1921.

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UNITED STATES PAT LEONARD S. CRONE, OF NEW YORK, N. Y.

SLIDING-TOP DESK.

Application filed November 6, 1920.

To all whom it may concern:

Be it known that I, LEONARD S. CRoNn, a citizen of the United States, and resident of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Sliding- Top Desks, of which the following is a specification.

This invention relates to improvements in a combined table and cabinet wherein the side sections of the top are slidably movable, in a horizontal plane, to uncover the compartments.

One of the objects of this invention is to provide an article of furniture of the character described, wherein the slidable topsections move laterally in a horizontal plane, on compound sliding brackets in such manner that the tops maintain the same level throughout their movement and wherein the construction and arrangement of the bracket is such that perfect rigidity is also maintained.

A further object is to provide an article of the character described, wherein the sliding and top supporting brackets operate between double walled chambers at the end of the filing compartment, while another object is to provide an article as described, wherein extensible, supporting brackets are provided which operate in conjunction with and upon a floating roller-bearing having a dissimilar roller or contact surfaces and having a means for keeping the floating rollerbearing in alinement. These objects are attained by the device illustrated in the accompanying drawing in which;

Figure 1 is a front elevation of the device partly broken away for purposes of better illustration,

Fig. 2 is a fragmentary plan view of one end of the device;

Fig. 3 is a detailed section slightly enlarged and taken along the line 33;

Fig. 4 is a detailed View, in perspective, of the floating roller-bearing.

Referring in detail to the parts, 11 designates the fixed top of the desk or table supported upon suitable legs 12, which are securely braced and held by means of the backmember 13, the apron 14, crossmembers 15 and 16 and the front panel-pieces 17.

Arranged parallelly with the front panel 17 and the back-member 13, between the crossanenibers 15 and'l6, are auxiliary sidemembers 18. These auxiliary members to- Specification of Letters Patent.

Patented Nov. 1, 1921. Serial No. 422,317.

'gether with the crosspieces 15 and 16 and the bottom-member 19 form a compartment 20 which is covered by means of a sliding top 21. p

The said top is slidably mounted and operates horizontally to open or close the compartment; For this purpose a bracket 22 is attached to the sliding-top and is formed with a slotted section 23 herein a roller-bearing 24: is adapted to engage. The said rollerbearing is formed with laterally extending bearing surfaces 25 and 26 of reduced circumferential dimension.

The roller contact 25 operates and engages through a slot 27, in a floating bracket and supporting member 28, which is held in alinement and further supported by means of a roller 29 secured to the front panel 17 and to the rear member 13. The end of the roller-bearing 25 and roller-bearing surface 26 further operate within the grooves 30 and 31 in the front panel and the auxiliary cross member respectively at the front end of the compartment and in similar grooves in the back-member and auxiliary-member at the back of the desk. It will be noted, as shown in Fig. 2, that the brackets are arranged at the front and rear of the compartment 20 on each side of the desk.

The brackets 22 and 28 are further supported by means of roller bearings 32 mounted beneath same, as clearly shown in Figs. 1 and 3, and the brackets 28 are provided with an additional roller 33 which is attached thereto and operates within the groove 23, as a further supporting means for the bracket 22. To assure perfect aline ment of the roller 24 the same is mounted upon a frame 33 having trailer ends 34 which operate in the slots 30 and 31.

For the purpose of reducing the friction between the brackets, there is provided suitable contacting surfaces 35 which may be formed integrally upon the brackets or which may be formed by inserted wires or strips attached to the brackets. A covering strip 36 may be provided which extends over the bracket 28, but the said strip is not essential to the proper working or operation of the device.

The sliding-top is movable upon its brackets in either direction, to open or close the compartment, without relatively changing the level of same with the stationary top, and the construction of the brackets and the connecting parts is such as to elimi- 1 shown.

ed upon the body-member,

ets secured to the sliding-top and body What is claimed.

1. In a desk and filing cabinet, a bodymember having filing compartments formed therein, a stationary top thereon, horizontally sliding tops and cover-members mounted upon the body-member, supporting-brackets secured to the sliding-top and bodymember and adapted to carry same in its horizontal movement and maintain it throughout its movement at the level of the stationary-top, chambers formed at the ends of the filing compartments for housing the said supporting-brackets, and anti-frictionmembers formed upon the brackets and engaging between same and the walls of the chambers.

2. In a desk and filing cabinet, a bodymember having filing compartments formed therein, a stationary top thereon, horizontally sliding tops and cover-members mountsupporting-brackmember and adapted to carry same in its horizontal movement and maintain it throughout its movement at the level of the stationary-top, a roller bearing having small and enlarged peripheral bearing surfaces adapted to engage within the supportingbrackets, a guide-frame carrying the rollerbearing and adapted to keep same in alinement, chambers formed at the ends of the filing compartments for housing the said supporting-brackets, and anti-friction-members formed upon the brackets and engaging between same andthe walls of the chambers.

3. In an article of furniture, a body-member suitably supported, a stationary .top thereon, movable top and cover members slidably mounted upon the body-member, supporting brackets secured to the slidingtop and adapted to carry same in its horizontal movement and maintain it throughout its movement at the level of the stationary top, rolling bearing means engaging and supporting the said brackets, means for maintaining the movable parts in alinement, a double walled chamber formed at the ends of the compartments to house the aforesaid brackets, and anti-friction members formed upon the said brackets and engaging between same and the walls of the chambers.

Signed at New York, in the countyof New York, and State of New York, this 26th day of Oct., 1920, A. D.

LEONARD S. CRONE. 

